Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao lan ke snippets" » "cao van ke snippets", "cao dang ke snippets", "cao tang ke snippets", "cao lang ke snippets", "cao ban ke snippets", "cao dan ke snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cao lan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao lan ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao lan ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao lan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.